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Improved yielding and reduced puffiness under extreme temperatures induced by fruit-specific expression of rolB in processing tomatoes
Year:
2007
Source of publication :
Theoretical and Applied Genetics
Authors :
Barg, Rivka
;
.
Kalutzky, Galina
;
.
Salts, Yehiam
;
.
Volume :
114
Co-Authors:
Shabtai, S., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Salts, Y., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Kaluzky, G., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Barg, R., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Facilitators :
From page:
1203
To page:
1209
(
Total pages:
7
)
Abstract:
Tomato fruit production is severely hampered by both extremely high and low temperatures, mainly due to impaired microsporogenesis and pollination under these conditions. Even mild temperature stress, leading to partial damage to pollen viability can result in the production of under-fertilized puffy fruits of poor quality, while severe stress can abolish fruit set completely. Genetic or transgenic parthenocarpy that enables fertilization-independent fruit development offers a solution for tomato yielding under conditions unfavorable for pollen production and/or fertilization. A transgenic processing tomato UC82 line, expressing rolB specifically during early stages of fruit development was compared to the parental line with respect to yield and fruit quality under extreme temperatures. Under both high and low temperatures the transgenic line performed significantly better than the parental line. Its yield was significantly higher mainly due to a higher number of fruits that did develop, and also because of increased fruit weight. While the UC82 fruits developed under high temperatures were very puffy and severely malformed, the transgenic fruits maintained improved jelly fill and were of smooth and regular shape. Interestingly, under high temperatures the improved jelly fill in the transgenic line was accompanied by a higher number of seeds, suggesting that not only the developing seeds promote development of the placental tissue but also that proliferation of this tissue supports better seed development. © 2007 Springer-Verlag.
Note:
Related Files :
Fruits
Gene
Genetics
metabolism
pollination
seeds
temperature
Transgenes
Show More
Related Content
More details
DOI :
10.1007/s00122-007-0511-7
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30639
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:56
Scientific Publication
Improved yielding and reduced puffiness under extreme temperatures induced by fruit-specific expression of rolB in processing tomatoes
114
Shabtai, S., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Salts, Y., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Kaluzky, G., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Barg, R., Institute of Plant Sciences, Volcani Center, ARO, P.O. Box 6, Bet Dagan 50250, Israel
Improved yielding and reduced puffiness under extreme temperatures induced by fruit-specific expression of rolB in processing tomatoes
Tomato fruit production is severely hampered by both extremely high and low temperatures, mainly due to impaired microsporogenesis and pollination under these conditions. Even mild temperature stress, leading to partial damage to pollen viability can result in the production of under-fertilized puffy fruits of poor quality, while severe stress can abolish fruit set completely. Genetic or transgenic parthenocarpy that enables fertilization-independent fruit development offers a solution for tomato yielding under conditions unfavorable for pollen production and/or fertilization. A transgenic processing tomato UC82 line, expressing rolB specifically during early stages of fruit development was compared to the parental line with respect to yield and fruit quality under extreme temperatures. Under both high and low temperatures the transgenic line performed significantly better than the parental line. Its yield was significantly higher mainly due to a higher number of fruits that did develop, and also because of increased fruit weight. While the UC82 fruits developed under high temperatures were very puffy and severely malformed, the transgenic fruits maintained improved jelly fill and were of smooth and regular shape. Interestingly, under high temperatures the improved jelly fill in the transgenic line was accompanied by a higher number of seeds, suggesting that not only the developing seeds promote development of the placental tissue but also that proliferation of this tissue supports better seed development. © 2007 Springer-Verlag.
Scientific Publication
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